Documentation/devicetree/bindings/iio/adc/sprd,sc27xx-adc.txt

   1 Spreadtrum SC27XX series PMICs ADC binding
   2
   3 Required properties:
   4 - compatible: Should be one of the following.
   5         "sprd,sc2720-adc"
   6         "sprd,sc2721-adc"
   7         "sprd,sc2723-adc"
   8         "sprd,sc2730-adc"
   9         "sprd,sc2731-adc"
  10 - reg: The address offset of ADC controller.
  11 - interrupt-parent: The interrupt controller.
  12 - interrupts: The interrupt number for the ADC device.
  13 - #io-channel-cells: Number of cells in an IIO specifier.
  14 - hwlocks: Reference to a phandle of a hwlock provider node.
  15 - nvmem-cells: A phandle to the calibration cells provided by eFuse device.
  16 - nvmem-cell-names: Should be "big_scale_calib", "small_scale_calib".
  17
  18 Example:
  19
  20         sc2731_pmic: pmic@0 {
  21                 compatible = "sprd,sc2731";
  22                 reg = <0>;
  23                 spi-max-frequency = <26000000>;
  24                 interrupts = <GIC_SPI 31 IRQ_TYPE_LEVEL_HIGH>;
  25                 interrupt-controller;
  26                 #interrupt-cells = <2>;
  27                 #address-cells = <1>;
  28                 #size-cells = <0>;
  29
  30                 pmic_adc: adc@480 {
  31                         compatible = "sprd,sc2731-adc";
  32                         reg = <0x480>;
  33                         interrupt-parent = <&sc2731_pmic>;
  34                         interrupts = <0 IRQ_TYPE_LEVEL_HIGH>;
  35                         #io-channel-cells = <1>;
  36                         hwlocks = <&hwlock 4>;
  37                         nvmem-cells = <&adc_big_scale>, <&adc_small_scale>;
  38                         nvmem-cell-names = "big_scale_calib", "small_scale_calib";
  39                 };
  40         };